diff --git a/src/css/Selector.ts b/src/css/Selector.ts
index 85922c017b..c66034bccd 100644
--- a/src/css/Selector.ts
+++ b/src/css/Selector.ts
@@ -224,6 +224,7 @@ function attributeMatches(node: Node, name: string, expectedValue: string, opera
 	if (!attr) return false;
 	if (attr.value === true) return operator === null;
 	if (attr.value.length > 1) return true;
+	if (!expectedValue) return true;
 
 	const pattern = operators[operator](expectedValue, caseInsensitive ? 'i' : '');
 	const value = attr.value[0];
diff --git a/test/css/samples/attribute-selector-only-name/_config.js b/test/css/samples/attribute-selector-only-name/_config.js
new file mode 100644
index 0000000000..b37866f9b6
--- /dev/null
+++ b/test/css/samples/attribute-selector-only-name/_config.js
@@ -0,0 +1,3 @@
+export default {
+	cascade: false
+};
\ No newline at end of file
diff --git a/test/css/samples/attribute-selector-only-name/expected.css b/test/css/samples/attribute-selector-only-name/expected.css
new file mode 100644
index 0000000000..2217e804d9
--- /dev/null
+++ b/test/css/samples/attribute-selector-only-name/expected.css
@@ -0,0 +1 @@
+[foo][svelte-xyz]{color:red}[baz][svelte-xyz]{color:blue}
\ No newline at end of file
diff --git a/test/css/samples/attribute-selector-only-name/input.html b/test/css/samples/attribute-selector-only-name/input.html
new file mode 100644
index 0000000000..bb3d98b6bc
--- /dev/null
+++ b/test/css/samples/attribute-selector-only-name/input.html
@@ -0,0 +1,11 @@
+<div foo='bar'></div>
+<div baz></div>
+
+<style>
+	[foo] {
+		color: red;
+	}
+	[baz] {
+		color: blue;
+	}
+</style>